1 Mineral preparations for use as nutritional foodstuffs for plants, namely, plant nutrients; mineral preparations for use in manufacturing, namely, refractory raw materials; processed minerals, namely, industrial minerals being magnesia; filtering materials of mineral substances for use in water treatment; minerals in powder form for industrial use, namely, precipitation of metals; raw minerals for industrial purposes, namely, water treatment, brake pads, animal feed, fertilizer, hydrometallurgy, wallboards, pulp, paper and refractory bricks for steel, ceramics and glass production; industrial minerals, namely, magnesia; chemical products for use in research, namely, chemical preparations for scientific purposes, other than for medical or veterinary use